HP IBASIC Supplement 3-5
Running, Pausing, and Stopping Programs
Running and Continuing a Program
The RUN command is executed in two phases: prerun initialization and
program execution.
The following occurs during the prerun initialization phase:
• Memory is reserved for variables specified in COM (both labeled and
blank), DIM, REAL or INTEGER statements, or implied in the main
program segment. Numeric variables are initialized to 0; string
variables are initialized to the null string.
NOTE Variables in COM are initialized only once—the first time a program is
run.
• The program is checked for syntax errors that require more than one
program line to detect. Included in this are errors such as incorrect
array references, and mismatched parameter or COM lines.
After prerun is successfully completed, the program begins the execution
phase. Program lines are executed until one of the following events
occurs:
1. An END or STOP statement is encountered in the program.
2. The hardkey is pressed to reset the instrument.
3. The softkey is pressed to pause the program.
4. A PAUSE statement is encountered in the program.
PRESET
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